In Chessable, you can skip ahead to your favorite opening variations or exercises. From your dashboard, click on the course you want to browse.
Go to the appropriate chapter.
Find the variation or exercise you want to train.
Click "Learn" or "Review".
If you want to view the line/exercise's read-only version instead of training it, then click on the variation name.
If you do not want to skip to a variation and want to learn/review in a continuous manner, click on the "Learn Next / Review" button on the top right. At the end of each exercise, you will have the option to move to the next one.